Spindle



Nov. 22, 1938.

F. E. BANFIELD, JR

SPINDLE Filed March 2l, 1935 Patented Nov. 22, 1938 UNITED STATES SPINDLE 4 Frederic E. Banfield, Jr., Saco, Maine, `assigner, by mesne assignments, to Saco-Lowell Shops,

Biddeford, Maine, a

corporation of Maine Application March 21, 1935, Serial No. 12,120

2 Claims.

This invention relates to spindles of the type used in spinning and twister frames. especially concerned with the mounting of the spindle in the base and bolster of a spindle 5 structure.

In connection with the twisting of very ne yarn and thread, it is necessary to have the.

traverse of the ring rail correspond with a high degree of accuracy to the distance between the l Jheads of the spools or bobbins. The present invention aims to devise means for so positioning the spindles vertically that this result. can be conveniently attained.

The nature of the invention will` be readily understood from the following description when read in connection with the accompanying drawing, and the novel features willbe particularly pointed out in the appended claims.

In thedrawing,

structure embodying features of this invention; Fig. 2 is a side elevation on a larger scale of the spindle bolster;

Fig. 3 is a plan View of the bolster; r

locking the bearing step in its adjusted position;

Fig. is a bottom view of the step; and

Fig. 6 is a sectional view of the stepv and its associated parts on a larger scale.

The construction shown in the drawing comprises a base 2 of a common form equipped with the usual tubular extensions 3 and 4 projecting, respectively, above and below the main body of the base. Mounted in the base is a bolster 5 provided near its upper end with a shoulder 6 to rest on the upper end of the extension 3 of the base, and thus to support the bolster in a xed position in the base. A spindle blade 1 is mounted in the bolster and carries the usual whirl 8, 40

a bearing step I0.

For the purpose of positioning the spindle accurately in the desired vertical relationship to the traverse of the ring rail, or other parts associated with the spindle structure, the step I0 is externally screw threaded and the lower end of the bolster 4 is internally threaded to receive the threaded portion of the step. Also, the lower end of the step is given the form of a disklike head I2 which is notched at intervals, as best shown in Fig. 5, for engagement with the vertical blade I3 of a retaining device or keeper. This device is made of spring steel, or other resilient material, and it includes a'C-shaped upper end portion adapted to embrace a portion of the It is more Figure l is a vertical, sectional view of a spindle Fig. 4 is a perspective View of the device for the lower end of the spindle being supported inr bolster, both the parts I3 and I4 :fittingv into grooves provided to receive them in-the lower portion of the bolster so that these members are located 'entirely within the lateral dimensions of the bolster. v

It will be evident from an inspection of Figs. 1 and 6, that with this construction the vertical position of the spindle blade can be adjusted by threading the step I0 in or out of the lower end of the bolster. Also, that the keeper I3 holds the step securely in its adjusted position and prevents any accidental displacement of it. Due to the screw threaded connection between the bolster and the step, the adjustment may be made with a high degree of accuracy.. It shouldl also be observed that this adjusting movement does not disturb the relationship between the bolster and the base, this relationship remaining constant, due to the fact that the shoulder 6 of the bolster rests on the upper end of the base. Nor does thisadjustment disturb the normal running relationship between the spindle and the bolster since the bearing provided in the upper portion of the bolster is straight or of cylindrical form, and the spindle is of the same shapeso that the adjustmentmerely moves the spindle up or down in this bearing. The parts required in eifecting this adjustment add relatively little to the expense of manufacture of the structure, and they provide a convenient means for producing the accurate vertical relationship between the spindle and the traverse of the ring rail which is highly desirable for some purposes, such for example, as those above mentioned.

Having thus described my invention, what I desire to claim as new is:

1. In a spindle structure, the combination of a spindle base, a bolster suspended in a fixed position in said base and having lateral bearings in the baseat both upper and lower portions thereof serving to hold it in a stationary relationship tothe base during operation, said base including a part to rest on the spindle rail and also a tubular imperforate extension projecting below said part and forming an oil well, a spindle blade mounted in said bolster, a bearing step for the lower end of said blade screw threaded into the I lower end of the bolster for vertical adjustment relatively to both the bolster and sai-d base to vary the vertical position of said blade relatively to the base, the step being supported above the bottom of said well, the upper portion of said bolster being provided with a cylindrical 'bearing for said blade in which the spindle is moved by said adjustment of the step while maintaining undisturbed the running relationship between the blade and said cylindrical bearing, and connections between said bolster and said step for holding the step in its various positions of adjustment.

2. In a spindle structure, the combination of a spindle base, a bolster suspended in a xed position in said base and having lateral bearings in the base at both upper and lower portions thereof serving to hold it in a stationary rela-v.

tionship to the base during operation, said base including a part to rest on the spindle rail andy also a tubular imperforate extension projecting below said part and forming an oil well, a spindle blade mounted in said bolster, a bearing step for the lower end of said blade screw threaded into the lower end of the bolster for vertical adjustment relatively to both the bolster and said base to vary the vertical position of said blade relatively to the base, the step being supported above the bottom of said well and provided with peripheral notches at its lower portion, the upper portion of said bolster being provided with a cylindrical bearing for said blade in which the spindle is moved by said adjustmentr of the step while maintaining undisturbed the running relationship between the blade and said cylindrical bearing, the lower part of the bolster having a vcircumferential groove therein, and means ttingY in said circumferential groove and said notches for holding the step in its various positions of adjustment.

FREDERIC E. BANFIELD, JR. 

